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  Specifying the core network supporting episodic simulation and episodic memory by activation likelihood estimation

Benoit, R. G., & Schacter, D. L. (2015). Specifying the core network supporting episodic simulation and episodic memory by activation likelihood estimation. Neuropsychologia, 75, 450-457. doi:10.1016/j.neuropsychologia.2015.06.034.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-7A1D-6 Version Permalink: http://hdl.handle.net/21.11116/0000-0003-7917-C
Genre: Journal Article

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 Creators:
Benoit, Roland G.1, 2, Author              
Schacter, Daniel L.1, 2, Author
Affiliations:
1Department of Psychology, Harvard University, Cambridge, MA, USA, ou_persistent22              
2Center for Brain Science, Harvard University, Cambridge, MA, USA, ou_persistent22              

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Free keywords: Episodic future thinking; Episodic simulation; Episodic memory; Functional MRI; Core network; Meta analysis
 Abstract: It has been suggested that the simulation of hypothetical episodes and the recollection of past episodes are supported by fundamentally the same set of brain regions. The present article specifies this core network via Activation Likelihood Estimation (ALE). Specifically, a first meta-analysis revealed joint engagement of expected core-network regions during episodic memory and episodic simulation. These include parts of the medial surface, the hippocampus and parahippocampal cortex within the medial temporal lobes, and the temporal and inferior posterior parietal cortices on the lateral surface. Both capacities also jointly recruited additional regions such as parts of the bilateral dorsolateral prefrontal cortex. All of these core regions overlapped with the default network. Moreover, it has further been suggested that episodic simulation may require a stronger engagement of some of the core network's nodes as well as the recruitment of additional brain regions supporting control functions. A second ALE meta-analysis indeed identified such regions that were consistently more strongly engaged during episodic simulation than episodic memory. These comprised the core-network clusters located in the left dorsolateral prefrontal cortex and posterior inferior parietal lobe and other structures distributed broadly across the default and fronto-parietal control networks. Together, the analyses determine the set of brain regions that allow us to experience past and hypothetical episodes, thus providing an important foundation for studying the regions’ specialized contributions and interactions.

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Language(s): eng - English
 Dates: 2015-06-232015-05-112015-06-262015-07-022015-08
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1016/j.neuropsychologia.2015.06.034
PMID: 26142352
PMC: PMC4546530
Other: Epub 2015
 Degree: -

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Title: Neuropsychologia
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 75 Sequence Number: - Start / End Page: 450 - 457 Identifier: ISSN: 0028-3932
CoNE: https://pure.mpg.de/cone/journals/resource/954925428258